Re: Color depth - Wikipedia, the free encyclopedia

*To*: mathgroup at smc.vnet.net*Subject*: [mg105182] Re: Color depth - Wikipedia, the free encyclopedia*From*: Bill Rowe <readnews at sbcglobal.net>*Date*: Mon, 23 Nov 2009 06:54:20 -0500 (EST)

On 11/22/09 at 6:11 AM, rlbagula at sbcglobal.net (Roger Bagula) wrote: >http://en.wikipedia.org/wiki/Color_depth >Does anyone know how to access thousand and millions of colors in >Mathematica? In Mathematica, color (RGBColor) is determined by a set of three to four real values from 0 to 1. The fourth value is the alpha channel (opacity) and defaults to 1 when only r,g,b values are given. =46or millions of colors, each channel is normally represented as an 8-bit value. So, here is an example of converting a Mathematica RGBColor to 8-bits per channel In[4]:= Round[255 List @@ ColorData[1][1]] Out[4]= {63,61,153} This particular color is the default color used by Plot and ListPlot when plotting a single curve or data set.